Windows Hyper-V allows an elevation of privilege vulnerability when Microsoft Windows 10 Gold, 1511, 1607, and 1703, and Windows Server 2016 fail to properly validate vSMB packet data, aka "Windows Hyper-V vSMB Elevation of Privilege Vulnerability".
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0212